Draft-rigging for railway-cars.



C. E. DATH.

DRAFT RIGGING FOR RAILWAY CARS.

- APPLICATION FILED ocr. 23. I914. L I Patented Apr. 10, 1917.

2 SHEETS-SHEET I.

IN VEN TOR. Mr J1EE flat/b BY WITNESSES AT ORNEY C. E. DATH.

DRAFT RIGGING FOR RAILWAY CARS.

APPLICATION FILED OCT-23, I914.-

Patented Apr. 10,1917.

2 SHEETS-SHEET 2.

IliillQllE'lill l. JILEIN I rllll A INVENTOR. adflJEflf/i BY f ATTORNEY l LES E. DATE, OF CHICAGO, ILLINOIS, ASSIGNOR T0 WILLIAM H. MINER, 0F

'oHAzY, NEW YORK.

DRAFT-RIGIGING FQR RAILWAY-CARS.

Specification of Letters Patent.

Patented a t. io, fart.

Application filednctober 23, 1914. Serial No. 868,156.

To all whom it may concern:

Be it known that 1, CHARLES E. DATH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Draft-Riggings for Railway-Cars, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a .part of this .specification.

This invention relates to improvements in draft riggings for railway cars. I

An object of the invention is to provide a friction draft rigging which may be employed in connection with stop castings of.

tandem spring gears.

Another object of the invention is to provide a draft gear of the type above indicated so arranged that the parts may be readily assembled and disassembled and placed in position on the car.

The invention furthermore consists in the improvements in the parts and devices and in the novel combinations of the parts and devices, as herein shown, described or claimed.

- In the drawing forming a part of this specification, Figure 1 is a longitudinal vertical sectional view of a draft gear showing my improvements, the draw bar and yoke being shown in elevation. Fig. 2 is a horizontal sectional view taken substantially on the line 22 of Fig. 1, the parts being shown in full bufi. Fig. 3 is a transverse sectional view on the line 33 of Fig. 1. Fig. 4 is a sectional view taken on the line 4-4 of Fig. 1 but omitting the yoke, the sills and stop castin Fig. 5,is a detail perspective view 0 the hollow block employed with my improvements, and Fig. 6 is a detail perspective view of the combined friction shell and spring casing.

In said drawing, 10-10 denote the center sills or other draft members, to which are secured the stop castings 11 11, each of which stop castings is provided with tandem arranged stops consisting of front stop 12, rear stop 13, front intermediate stop 14 and rear intermediate stop 15. Front and rear intermediate limiting stops 1616 are also provided in the usual manner. 17 denotes a U-shaped yoke of usual form secured to the draw bar 18 by rivets or other suitable means. Mounted within the yoke is my improved gear which, .as shown, comprises a combined friction cylinder and spring casing A, shown most clearly in Fig. 6, the friction cylinder being designated by the reference 19 and the spring casing by 20,

said cylinder and casing being united by upper and lower horizontal members 21-21, thus providing openings 22 on the sides thereof for a purpose hereinafter specified.

. The rear end of the spring casing 20 is provided with an integral rear follower 23 and the rear end of the cylinder 19 is provided with an integral front intermediate follower 24. As shown in Fig. 2, a front follower 25 of usual form is employed. Mounted within the cylinder 19 is a friction device which may be of any suitable form and, as shown, the same comprises a plurality of friction shoes 26, wedge 27, with anti-friction rollers 28 therebetween. Engaging the rear ends of the friction shoes 26, is an annular flange 29 formed on the front end of the hollow cylindrical block 30, shown most clearly in Fig.- 5.v The rear end of the block 30 is provided with outstanding flanges 31, which are seated in corresponding sockets 32 formed on the front face of the rear intermediate follower 33, which follower is so designed that it may be inserted through the openings 22-22 hereinbefore described. The follower 33 is perforated at the center thereof, as is also the rear wall of the block 30, and through these perforations extends a spring 34:, which at its front end engages inwardly extending shoulders 35 formed on the friction shoes and at its rear end engages a hollow boss 36 formed integral with the rear follower 23. A connecting bolt" 37 -is employed which extends between the wedge 27 and said boss 36. Surrounding the boss 36 and having one end thereof pressing against the rear follower 23 is a main spring 38, the forward end of which engages the.

port thecarry strap 39. A tie plate 44- is also employed which is bolted to the horizontal lower flanges of the sills 10,-10.

lower 33 separate from the casting A, I insure the more even distribution of the shocks to the stop castings, since it is apparent that the followers 33 and 23 will accommodate themselves to the stops with which they are adapted to cooperate, under all conditions of spacing, which is not always true in a structure where the-rear intermediate move forwardly,

.play against the'friction shoes, thus a front follower,

follower is'formed integral with the same casting having the rear follower and front intermediate follower.

The operation of the device is as follows :Upon buffing movement, the front follower presses back the friction devices, which in turn press the rear intermediate follower backward through the intermediary of the hollow bloclcf30, the resistance of this movement being furnished by the springs 38 and 34. Upon draft, the followers 25 and 33 are in engagement with their corresponding stop shoulders 12 and 15 and the casting A is moved forwardly. Upon the continuation of the forward move ment of the casting A, the main spring 38 is compressed against the follower. 33, but in view of the fact that the follower 33 can not the pressure from the spring 38 is not transmitted to the friction shoes 26; A slight spring pressure'is transmltted to'the friction shoes by the secondary or smaller spring 34, which causes a slight frictionalaction between the shoes and the friction cylinder. In other words, under bufl, the friction shoes are resisted by the two springs 34 and 38, whereas, under draft, only the smaller spring comes into givin an easy draft action which is desirable, an a heavier bufiing action.

I claim 1, In a draft riggin for railway cars, the combination with tan em stop castings, of a longitudinally movable friction shell, friction elements and springs within said shell,

a rear follower, a front intermediate follower, and a' removable, rear intermediate. follower extending transversely through said shell intermediate the ends thereof and arrangedto cooperate with one set of intermediate stops on said stop castings, said rear intermediate follower being movable rearwardly under buff.

2. In a railway draft rigging, the combi: nation with tandem stop castings,'of a longitudinally movable combined friction shell and spring casing, friction elements and springs within said shell and casing, a removable intermediate follower extended followers and scribed,

transversely through said shell, and a plunger extending between said friction elements and said removable follower. By forming the rear intermediate fol-' "3. In a draft riggin for railway cars, the combination with tam iem stop castings, of a combined friction cylinder and spring casing having shoulders cooperating with one set of end stops and one set of intermediate stops on said castings, and two removable coiiperable with the remaining sets of end and intermediate stops on said stop castings.

4. In a draft rigging for railway cars, the combination with tandem stop castings, of a slidably mounted combined friction cylinder and spring casing, friction shoes and a wedge mounted within thefriction cylinder, a spring mounted within the spring casing, a rear intermediate follower extending through said combined cylinder and casing and intermediate the same and engaging the front end of said spring, and a hollow block extending between the rear ends of the friction shoes and the front face of said intermediate follower, said block being detachable with respect to said follower.

5. In a draft rigging of the character described, the combination with a friction shell, of friction shoes and a spreader therefor cooperable with said shell, a main spring a secondary spring, the latter acting directly on the shoes under both bufl and draft, and means intermediate the main spring and said shoes arranged to transmit the movement of the shoes to said main spring under bufi' only.

6. n a draft rigging of the character dethe combination with a friction cylinder, of friction shoes and a spreader therefor, cooperable with said cylinder, and two springs, one of said springs resisting movement of the friction shoes under both buff and draft and the other spring resisting movement of said shoes under bufi only.

In a draft rigging of the character described, the combination with a friction cyls inder having friction shoes and a wedge 00- operable therewith, of two springs arranged in line with said shoes, both of said springs operating to resist movement of the shoes under buff, and means interposed between one only of said springs and the friction shoes to prevent said spring from coacting with the shoes under draft. said spring being compressed under draft without coacting with the shoes.

CHARLES E. DATH.

Witnesses:

CARRIE G. RANZ, ELIZABETH M. Burn. 

